1. Enumeration of microorganisms by poured plate technique for colony count,1984
2. Code of Practice for the Assessment of Milk Quality,1985
3. Enumeration of bacteria in milk;Griffiths,1991
4. The role of micro-organisms in the dairy industry;Prentice,1986
5. The Biotrace method for estimating bacterial numbers in milk by bioluminescence;Sutherland;J. Soc. Dairy Technol.,1994